Výsledky vyhledávání - "Shichijo, Tomoya"

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Quantum state of a suspended mirror coupled to cavity light -- Wiener filter analysis of the pendulum and rotational modes

Autor: Shichijo, Tomoya, Matsumoto, Nobuyuki, Matsumura, Akira, Miki, Daisuke, Sugiyama, Yuuki, Yamamoto, Kazuhiro

We investigated the quantum state of an optomechanical suspended mirror under continuous measurement and feedback control using Wiener filtering. We focus on the impact of the two-mode theory of suspended mirror on the quantum state, which is describ

Externí odkaz: http://arxiv.org/abs/2303.04511

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Effective description of a suspended mirror coupled to cavity light -Limitations of Q-enhancement due to normal mode splitting by an optical spring-

Autor: Sugiyama, Yuuki, Shichijo, Tomoya, Matsumoto, Nobuyuki, Matsumura, Akira, Miki, Daisuke, Yamamoto, Kazuhiro

Pendulums have long been used as force sensors due to their ultimately low dissipation (high-quality factor) characteristic. They are widely used in the measurement of the gravitational constant, detection of gravitational waves, and determination of

Externí odkaz: http://arxiv.org/abs/2212.11056

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Generating quantum entanglement between macroscopic objects with continuous measurement and feedback control

Autor: Miki, Daisuke, Matsumoto, Nobuyuki, Matsumura, Akira, Shichijo, Tomoya, Sugiyama, Yuuki, Yamamoto, Kazuhiro, Yamamoto, Naoki

Publikováno v: Phys. Rev. A 107, 032410 (2023)

This study is aimed at investigating the feasibility of generating quantum entanglement between macroscopic mechanical mirrors in optomechanical systems while under continuous measurement and feedback control. We carefully derive a covariance matrix

Externí odkaz: http://arxiv.org/abs/2210.13169

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